Its a nuclear weapon explosion device that derives its destructive force from nuclear reactions, either fission or a combination of fission and fusion.
Answer:
(a) oxygen
(b) 154g (to 3sf)
(c) 79.9% (to 3sf)
Explanation:
mass (g) = moles × Mr/Ar
note: eqn means chemical equation
(a)
moles of P = 84.1 ÷ 30.973 = 2.7152 moles
moles of O2 = 85÷2(16) = 2.65625 moles
Assuming all the moles of P is used up,
moles of O2 / moles of phosphorus = 5/4 (according to balanced chemical eqn)
moles of O2 required = 5/4 × 2.7152moles = 3.394 moles (more than supplied which is 2.65625moles)
therefore there is insufficient moles of O2 and the limiting reactant is oxygen.
(b)
moles of P2O5 produced
= 2/5 (according to eqn) × 2.7152
= 1.08608moles
mass of P2O5 produced
= 1.08608 × [ 2(30.973) + 5(16) ]
= 154.164g
= approx. 154g to 3 sig. fig.
(c)
% yield = actual/theoretical yield × 100%
= 123/154 × 100%
= 79.870%
= approx. 79.9% (to 3sf)
Answer:
The velocity of an object is the rate of change of its position with respect to a frame of reference.
Explanation:
B. A nuclear Reactor
Explanation:
Nuclear fusion does not occur in a nuclear reactor. The energy that is derived from a nuclear reactor for the production of electricity is derived from nuclear fission.
- Nuclear fission is a radioactive decay process in which a heavy nucleus decays spontaneously with the release of a large amount of energy.
- This process is spontaneous and will readily occur
- Nuclear fusion involves the combination of light nuclei to form heavier ones.
- It occurs in giant stars, core of the sun and supernova.
- The process requires a high activation energy to start with.
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Non-renewable energy brainly.com/question/2948717
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